Here is the service manual for a Seiko 7019A movement. There is two links here. Both only show the calendar side. For the motion side I suggest you follow a 7009 or similar as they all follow the same pattern.
Download the service manual here: https://myretrowatches.co.uk/27-7019a-2/
Download the parts list here: https://myretrowatches.co.uk/7019a-2/